I like to wave.
In the car, on long road trips I really enjoy waving to kids in the back seat, especially if they wave back.
When I was a kid I used to wave at planes when they passed overhead.
To this day, I wave at graveyards, as I ride past. I suspect ghosts don’t exist, but if they do, I think they’d like to be acknowledged with a friendly gesture every now and then.
If I’m sitting on the front porch, reading or whatever, I wave to the odd passing car, neighbor or not.
If I think someone’s watching on the webcam, I wave a quick hello.
As a side note –
I want a picture to go with this sound.
I’ve been looking for about a half hour, and haven’t turned up anything yet.